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在刨齿机上加工锥齿轮,有时会遇到被加工锥齿轮所要求的原始齿形角α。没有相应的刀具规格(α_0为22°30′或25°,而只有齿形角为20°的刨刀),本文将探讨在此情况下如何精确地加工出所需要的齿轮。对于一个齿轮而言,它可以和各种齿形角的齿条相啮合,只要符合m_齿cosa_齿=m_条cosa_条式中m_齿——齿轮模数;m_条——齿条模数;a_齿——齿轮压力角;a_条——齿条压力角。对于一个锥齿轮而言也是这样,只不过是把齿条换成平面冠轮。如用a_b(切削齿形角)的刨刀加工原始齿形角为a_o的锥卤轮,只要重新确定切削模数m_b,并
Machining a bevel gear on a planing gear sometimes encounters the original tooth profile angle α required for the bevel gear to be machined. Without a corresponding tool specification (α_0 of 22 ° 30 ’or 25 °, but only a sharpening angle of 20 °), this article explores how to precisely machine the required gear in this situation. For a gear it can mesh with a rack of various gear angles as long as it meets the m_ tooth cosa_ tooth = m_ bar cosa_ bar m_ tooth - gear modulo m_ bar - - rack modulus; a_ tooth - gear pressure angle; a_ bar - rack pressure angle. The same is true for a bevel gear, but the rack is replaced by a flat crown wheel. If a_b (cutting tooth angle) of the planer processing original tooth angle a_o cone wheel, as long as to re-determine the cutting modulus m_b, and